webpack.config.js

var path = require('path');
var webpack = require('webpack');

var config = module.exports = {
  context: __dirname,
  entry: './index.js',
  output: {
    path: path.join(__dirname, 'build'),
    filename: 'index.js'
  },
  target: 'node',
  module: {
    loaders: [
      {
        test: /\.js$/,
        loader: 'babel',
        blacklist: ['regenerator', 'runtime']
      }
    ]
  }
};